Improvement in hinged covers for retort-caps



P. IUNZINGER.

I Hinged-ll-over's for Retort-Gaps.- N0.l57,100..

Patented Nbv. 24,1874.

i l I UNITED STATES PATENT OFFICE.

PETER MUNZINGEB, OF 1EHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN HINGED COVERS FOR RETORT-CAPS.

Specification forming part of Letters Patent No. 157,100, datedNovembcr24, 1874; application filed June 25, 1874.

To all whom it may concern Be it known that I, PETER MUNZINGER, of thecity and county of Philadelphia, and State of Pennsylvania, haveinvented a new and useful Hinged Cover for RetortUaps; and do herebydeclare the following to be a full, clear, and precise description ofthe same, reference A being had to the accompanying drawing forming partof this specification, and in which Figure l is a plan of my cover, andFig. 2 a side elevation of the same.

Similar letters of reference indicate like parts in both the figures.

, My invention consists of the combination, with a hinged cover forgas-retorts, of the hereinafter-described mechanism for locking thecover.

To enable those skilled in the art to which my invention appertains tomake and use it, I will proceed to describe in detail the constructionof that invention.

A is the cap or neck of a gas-retort. B is the hinge-cover, which is aflat piece of metal ground on its under surface, as is also the uppersurface of the retort-cap. It is provided upon both its sides withlittle lugs or projec tions 1) b b I), having one of their ends eachbeveled obliquely oft. There are four oppositely-beveled studs upon theretort-cap, c 0 c 0, under which the lugs on the cover slide, by whichthey are partially covered, and whereby the cover itself is preventedfrom being raised perpendicularly up. At one side of the retort-cap isset a hinged rocking-shaft connection, 0, pivoted by means of thebearingpieces D and the rod E. It is provided with set-screws L to alterits adjustment upon the rod E. ,Pivoted also upon the rod E are twohinge-bars, F, passing along across the cover, and held loosely inposition by the cappiece G.

Now, it will be readily understood that the cover can be slid upon theretort-cap laterally to a certain extent, as far as the play on thecap-pieces G over the hinge-bars F will allow. Set and hinged almostcentrally upon the cover is a second rocking-shaft connection, H,shorter than 0, and connected by a hingejoint with it at I. The axle ofthis rocking shaft is squared at one extremity, where it projects beyondits bearing, and upon this square end is fastened a hand-lever, K.

Having thus described the construction of my invention, its action isvery simple, and consists in the sliding of the hinge-cover B upon theretort-cap A, the sliding being effected by the action of the hand-leverK, causing, as it does, the straightening into line of the two rockingshafts, one of which abuts upon the retort-cap, the other upon thecover,

and whereby the cover is slid away from the hinged end of the shaft 0,and whereby, also, the lugs b are slid under the studs 0 and the coverlocked. T

When unlocked it can be raised by the hinge-bars F, the whole devicebeing for the time a simple hinged cover.

When the lid is let fall a reverse deflection of the lever will oncemore lock the cover.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent of the United States, is-- The hinged cover B,in combination with the hand-lever K and the two rocking shafts H and O,the deflection of the hand-lever causing the shafts to come into line orform an angle with one another, and causing thereby the cover itself toslide laterally forward or backward, and its lugs to take under thestuds on the retort-cap or separate from them, in the manner and for thepurpose specified.

PETER MUN ZINGER. Witnesses:

J. BONSALL TAYLOR, ELMER W. CLARK, Jr.

